13225726164 has 48 divisors (see below), whose sum is σ = 37343230848. Its totient is φ = 3556497408.

The previous prime is 13225726153. The next prime is 13225726193. The reversal of 13225726164 is 46162752231.

It is a super-2 number, since 2×13225726164² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4629429 + ... + 4632284.

It is an arithmetic number, because the mean of its divisors is an integer number (777983976).

Almost surely, 2^13225726164 is an apocalyptic number.

13225726164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13225726164 is an abundant number, since it is smaller than the sum of its proper divisors (24117504684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13225726164 is a wasteful number, since it uses less digits than its factorization.

13225726164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9261744 (or 9261742 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The spelling of 13225726164 in words is "thirteen billion, two hundred twenty-five million, seven hundred twenty-six thousand, one hundred sixty-four".